OpenVPN TAP for VOIP Multicast



  • Hello guys,

    Seeing my normal IPSEC VPN and my OpenVPN Tun don't cut it I'm trying to figure out the right way to set up an OpenVPN Tap Peer-to-peer with SSL.
    In short

    • I create a CA cert, a server cert and a client cert. (server side)
    • I then setup the openvpn on the server side. (see attachments)
    • I set an interface for my OpenVPN and bind it with the VOIPVLAN
      On the client I do
    • Import the CA with only the crt
    • Import the client with crt and private
    • Set up client side openvpn (see attachments)
    • Set an interface for OpenVpn and bridge it with my CLIENTVOIPLAN

    Both my VOIP VLAN's have an IP within the same subnet
    eg SERVERVOIPVLAN 10.10.10.1/24
    CLIENTVOIPVLAN 10.10.10.100/24

    My openvpn deamon always stops with error1??? These are the detailed messages when I check the log
    Oct 20 07:50:26 openvpn[58446]: /sbin/ifconfig ovpnc1 172.18.200.2 netmask 255.255.255.0 mtu 1500 up
    Oct 20 07:50:26 openvpn[58446]: FreeBSD ifconfig failed: external program exited with error status: 1
    Oct 20 07:50:26 openvpn[58446]: Exiting due to fatal error
    Anyone any ideas of what I'm doing wrong?





















  • Well, strangely whatever I tested couldn't get it to work.
    Changed the drive and NIC's to another physical system and connection of OpenVPN is active.
    Allthough I added all the Firewall rules traffic doesn't pass over the link.
    Any ideas?

    Kind regards.


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